https://www.digikey.com/en/products/detail/macom-technology-solutions/MASW-007107-TR3000/4429770Apparently "DC" means 2 GHz to these people. They test it with 8 pFseries caps on the input and output.I once used a Maxim part rated DC to 10 GHz, thatabsolutely screwedup below 100 MHz.A lot of "DC" parts are actually characterized down to 9 KHz, becauselots of spectrum analyzers only go that low.Grrrrr.
john larkin <jl@glen--canyon.com> Wrote in message:rabsolutely screwedup below 100 MHz.A lot of "DC" parts are actually characterized down to 9 KHz, becauselots of spectrum analyzers only go that low.Grrrrr.
https://www.digikey.com/en/products/detail/macom-technology-solutions/MASW-007107-TR3000/4429770Apparently "DC" means 2 GHz to these people. They test it with 8 pFseries caps on the input and output.I once used a Maxim part rated DC to 10 GHz, that
O yes, they are different. No one would really understand, until
you work with one.
Cheers
On Tue, 29 Oct 2024 18:56:34 -0400 (EDT), Martin Rid <martin_riddle@verison.net> wrote:
john larkin <jl@glen--canyon.com> Wrote in message:r
https://www.digikey.com/en/products/detail/macom-technology-solutions/ MASW-007107-TR3000/4429770Apparently
"DC" means 2 GHz to these people. They test it with 8 pFseries caps on
the input and output.I once used a Maxim part rated DC to 10 GHz, that
absolutely screwedup below 100 MHz.A lot of "DC" parts are actually
characterized down to 9 KHz, becauselots of spectrum analyzers only go
that low.Grrrrr.
O yes, they are different. No one would really understand, until
you work with one.
Cheers
I found one Pericom RF switch that is "True DC to 8 GHz", which may be
an improvement.
So DC means AC, but "True DC" means DC in the RF world.
On Tue, 29 Oct 2024 16:17:58 -0700, john larkin wrote:
On Tue, 29 Oct 2024 18:56:34 -0400 (EDT), Martin RidMASW-007107-TR3000/4429770Apparently
<martin_riddle@verison.net> wrote:
john larkin <jl@glen--canyon.com> Wrote in message:r
https://www.digikey.com/en/products/detail/macom-technology-solutions/
"DC" means 2 GHz to these people. They test it with 8 pFseries caps on >>>> the input and output.I once used a Maxim part rated DC to 10 GHz, that >>>> absolutely screwedup below 100 MHz.A lot of "DC" parts are actually
characterized down to 9 KHz, becauselots of spectrum analyzers only go >>>> that low.Grrrrr.
O yes, they are different. No one would really understand, until
you work with one.
Cheers
I found one Pericom RF switch that is "True DC to 8 GHz", which may be
an improvement.
So DC means AC, but "True DC" means DC in the RF world.
ISTR being told here that 40Mhz was "practically DC" (but I suppose today
it probably is!)
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